<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        a {
            text-decoration: none;
            display: inline-block;
            width: 200px;
            height: 50px;
            background-color: red;
            text-align: center;
            line-height: 50px;
            color: green;
        }
        a:hover {
            background-color: blue;
        }
    </style>
</head>
<body>
<a href="#">导航1</a>
<a href="#">导航2</a>
<a href="#">导航3</a>
<a href="#">导航4</a>
<a href="#">导航5</a>
</body>
</html>